Skip to content

FASTA Combiner

Combine multiple FASTA sequences into a single FASTA input for downstream processing.

FASTA Combiner

Quick Start

  1. Connect up to five FASTA inputs to the node.
  2. Enable the separator option to add comments between combined sequences (optional).
  3. Use the output as a single FASTA input for other nodes.

Setup Guide

1. Add the Node

  1. Insert the FASTA Combiner node into your workflow.
  2. Connect FASTA outputs from upstream nodes to the available inputs.

2. Configure Options

  1. Optionally enable the separator to add comments between combined FASTA blocks.
  2. Leave unused FASTA inputs empty if combining fewer than five sequences.

Basic Usage

Combine Multiple FASTA Sequences

  • Merge up to five FASTA inputs into a single FASTA string.
  • Optionally insert separator comments for clarity.
  • Use the combined output as input for downstream sequence analysis or modeling nodes.

Configuration

Required Inputs

None

Optional Inputs

Field Description Type Example
fasta_1 First FASTA sequence(s) FASTA >A\nMKT...
fasta_2 Second FASTA sequence(s) FASTA >B\nGYL...
fasta_3 Third FASTA sequence(s) FASTA >C\nLIA...
fasta_4 Fourth FASTA sequence(s) FASTA >D\nNSS...
fasta_5 Fifth FASTA sequence(s) FASTA >E\nGTA...
separator Add separator comments between different inputs BOOL true

Outputs

Field Description Type Example
combined_fasta Combined FASTA string from inputs FASTA >A\nMKT...

Best Practices

Input Management

  • Only connect FASTA inputs you need; leave others empty.
  • Use the separator option to clarify boundaries between combined sequences, especially when merging unrelated data.

Downstream Compatibility

  • Ensure the combined FASTA is compatible with downstream nodes expecting a single FASTA input.
  • Validate the output if combining sequences from different sources to avoid ID conflicts.

Troubleshooting

Common Issues

  • No output generated: Ensure at least one FASTA input is provided.
  • Unexpected sequence order: Inputs are combined in order (fasta_1 to fasta_5); check connections.
  • Downstream errors: Confirm the combined FASTA format matches requirements of subsequent nodes.

Need Help?

  • Contact support for further assistance.